PMID- 31976884 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200911 LR - 20200911 IS - 1525-8955 (Electronic) IS - 0885-3010 (Linking) VI - 67 IP - 6 DP - 2020 Jun TI - Single-Shot Near-Field Volumetric Imaging System for Optical Ultrasound and Photoacoustics Using Capacitive Micromachined Ultrasonic Transducer Without Transmission Mode. PG - 1151-1158 LID - 10.1109/TUFFC.2020.2965600 [doi] AB - In this article, we present a single-shot dual-mode imaging system that uses optical ultrasound (US) as an ultrasonic pulser without a transmission circuit. The ultrasonic pulse-echo system comprises an optical US pulser generated by carbon nanotubes (CNTs), which generate a high-power photoacoustic (PA) signal and a capacitive micromachined ultrasonic transducer (CMUT) receiver. By fabricating a thin CNT-polydimethylsiloxane (PDMS) composite capable of semiabsorption of the laser, a single-shot imaging system was developed. By transmitting a semipenetration light to the object, US and PA imaging were performed in a single shot. A CNT thickness of [Formula: see text] produced a maximum pressure of 154 kPa, and US was received by CMUT with a 2-MHz center frequency in PDMS. Additionally, a low-profile and near-depth imaging system was constructed with an intermediate layer of the 6-mm PDMS for the dry contact method. We performed a single-shot dual-mode imaging experiment on point and line phantoms, as well as the particle spread in the soft tissue. Thus, we examined the feasibility of the near-depth and single-shot dual-mode (US and PA) imaging system capable of a dry contact. FAU - Choi, Won Young AU - Choi WY FAU - Kwon, Soo Won AU - Kwon SW FAU - Kim, Young Hun AU - Kim YH FAU - Kang, Ki Chang AU - Kang KC FAU - Park, Kwan Kyu AU - Park KK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200120 PL - United States TA - IEEE Trans Ultrason Ferroelectr Freq Control JT - IEEE transactions on ultrasonics, ferroelectrics, and frequency control JID - 9882735 SB - IM EDAT- 2020/01/25 06:00 MHDA- 2020/01/25 06:01 CRDT- 2020/01/25 06:00 PHST- 2020/01/25 06:00 [pubmed] PHST- 2020/01/25 06:01 [medline] PHST- 2020/01/25 06:00 [entrez] AID - 10.1109/TUFFC.2020.2965600 [doi] PST - ppublish SO - IEEE Trans Ultrason Ferroelectr Freq Control. 2020 Jun;67(6):1151-1158. doi: 10.1109/TUFFC.2020.2965600. Epub 2020 Jan 20.